Ventilator



April 15, 5 G. M. BREIDERT 2,830,524

I VENTILATOR Filed Sept. 7, 1954 FIG. I.

' FIG. 2. 3 L

INVENTOR 25 GEORGE M. BREIDERT .5 BY Mm ATTORNEYS nite States Patent 1 2,sso,s24 VENTILATBR George M. liireidert, La Crescenta, Calif., assignor to The G. C. llreidert 30., San Fernando, Califl, a corporation of Qalifornia Application September 7, 1954, Serial No. 454,266 3 Claims. (Cl. 90-66) This invention has to do with ventilating devices of the type placed on the top of a building, where it communicates with a vent flue cap forming an outlet from the building. My invention has more particularly to do with an improved neck construction of the ventilator, which adapts itself to fit on vent flue caps of variable sizes as well as irregular curvatures.

A difiiculty which has long existed in this art is that the diameters of the vent flue caps are not standardized, usually varying from three to ten inches in diameter and the caps also become bent and deformed. In many cases the same size and capacity of ventilator head is used regardless of the diameter of the vent flue cap onto which it is to be fitted. The annular necks of the ventilator heads are usually integral parts of the heads, so that in order for a dealer to carry in stock ventilator heads capable of fitting the various sizes of vent flue caps, it is essential that the dealer carry large numbers of the same size and capacity of ventilator head but having necks of different sizes.

It is therefore an object of my invention to provide a ventilator head having a neck construction which is adaptable to fitting various sizes of vent flue caps.

Another object of my invention is to provide a ventilator head having a neck construction which is capable of fitting irregularly shaped vent flue caps and which is also capable of fitting any vent flue cap with a snug resilient friction fit.

A still further object of my invention is to provide in a ventilator head a neck construction peculiarly suited to mounting the head upon asbestos and other composition type vent flue caps.

What I claim to be new is set forth in the appended claims, but for purposes of making my invention better understood by those skilled in the art I shall now describe presently preferred embodiments thereof, for which purpose I shall refer to the accompanying drawings where- 1n:

Fig. 1 is a view partly in side elevation and partly in section;

Fig. 2 is a side elevation of my adapter element;

Fig. 3 is a top plan view of the adapter of Fig. 2, taken on the line 3-3 of Fig. 2;

Fig. 4 is an enlarged section taken on line 4-4 of Fig. 3; and

Fig. 5 is a fragmentary view partly in elevation and partly in section showing a modified use of my invention.

Referring now to the drawings, I show at 5 a conventional ventilator head of the type having vertically disposed baflles 6 and a bottom plate 7, although I wish it understood that my invention is not limited to being used in conjunction with any particular type of ventilator head.

The numeral 10 denotes a cylindrical neck which is welded to the bottom plate 7. A conventional vent flue cap is shown extending from the roof 16 of a buildmg.

Interposed between the annular neck 10 and the annular vent flue cap 15, I provide an adapter 20 which is made of resilient metal and is pre-formed into a somewhat U-shaped cross-section as shown in Fig. 4that is, it has a cylindrical outer wall 21 and an upwardly and inwardly diverging inner wall 22 said walls being con- "ice nected at one end by a bight portion 23. Screws 25 may be employed to secure the adapter in the neck.

It will be apparent that although the vent flue cap 15 may be of uneven curvature or of a diameter much smaller than the diameter onto which the neck 10 is intended to fit, by use of my adapter I am able to use a standard ventilator neck diameter to fit varying diameters of vent flue caps. Also, since the adapter is resilient, a snug fit is obtained even through the vent flue cap may be somewhat out of shape. Also the described construction of my adapter renders the assembly suiticiently flexible to permit such swaying of the ventilator head relative to the flue cap as is caused by high winds, without distorting the neck or cap, and still the ventilator head will be returned to upright position by the adapter after each swaying motion.

In Fig. 5, I show a variational manner of constructing and using my adapter which is peculiarly well suited to mounting a ventilator upon a composition vent flue cap. As is well known, composition flue caps, being relatively soft or brittle, often become chipped and cracked and are relatively weak as compared with metal. Here I show my adapter 20a as being inverted from the position in which it is shown in Figs. l-4, so as to present a downwardly opening annular channel into which a composition vent flue cap 15a is fitted, so that the weight of the ventilator head is imposed directly against the end surface of the vent flue cap, and so that even though the end of the vent flue cap may be chipped, cracked or uneven, it does not interfere with the mounting, since the end of the vent flue cap is enclosed between the side and top walls of the adapter. Here the inner and outer walls of the adapter are shown as parallel to each other, instead of being divergent as shown in Figs. l-4.

.I claim:

1. In ventilation apparatus having a vent flue cap memher and a ventilator head having a cylindrical inlet neck member whose inside diameter is greater than the outside diameter of said cap member, an adapter device interposed between opposed surface portions of said members to radially and concentrically space them apart, comprising an annular resilient body of U-shaped cross section having two radially spaced side wall portions connected at one end only by a transverse bight portion of a width substantially equal to the diflierence between said diameters of said members, whereby to allow the opposite end portions of said wall portions to flex relative to each other; said side wall portion being disposed to be parallel with the longitudinal axes of and to frictionally engage said opposed surface portions of said members when said body is interposed therebetween.

2. The device of claim 1 wherein said adapter device further includes means for securing one of said side wall portions to one of said members.

3. The device of claim 1 wherein one of said side wall portions is presprung to diverge from the other of said side wall portions in an axial direction away from said bight portion when said body is not interposed between said members.

References Cited in the file of this patent UNITED STATES PATENTS 214,991 Coler May 6, 1879 601,542 Barnes Mar. 29, 1898 696,059 Line Mar. 25, 1902 1,192,279 Dawson et al July 25, 1916 1,875,130 Peck Aug. 30, 1932 2,295,669 Laws Sept. 15, 1942 2,327,571 Wallis Aug. 24, 1943 2,358,397 Howle Sept. 19, 1944 2,522,995 Coleman Sept. 19, 1950 

